1. Communicate with the opposite family: You can communicate with the opposite family, put forward your doubts and dissatisfaction, let them know the situation, and try to solve it together.
2. Ask a professional to measure: You can ask a professional to measure the height difference between two threshold stones to ensure that your suspicion is correct. If there is indeed a height difference, you can negotiate with the opposite family to solve it.
3. Adjust the threshold stone of your home: If the opposite home does not agree to adjust the threshold stone, you can consider adjusting the threshold stone of your home to make it consistent with the height of the opposite home. But this requires you to have the relevant skills and tools.
4. Seek property or legal help: If you can't solve it through communication or yourself, you can seek property or legal help and let them get involved.
No matter which way is adopted, we should remain calm and rational to avoid emotionalization and intensification of contradictions. At the same time, we should respect the rights and wishes of family members and try our best to find the best solution through consultation and cooperation.